If you are serious about developing anything for any Nokia phone you have to check out the Forum Nokia website. It has all the resourses you need to get you started from all the MIDP SDK’s with the accompanying emulators, all the different platform SDK’s including Series 40, Series 60, Series 80, development tools, all the tecnical specifications, extensive documentation on all available and upcoming technologies, developer forums where you can drop a question and most probably find what you are looking for has already been answered.
The site caters for game developers, enterprise developers, media developers and just about any other type of developer you can think of.

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If you own a Series 60 or a Seies 80 mobile device check out the freely available downloads ie. sis files and/or mbm files. The site seems to be in German but has a Google translation link which will translate everything into English for you. There is a whole heap of free programs available for your mobile phone in the software section. Have fun and happy hunting …

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At the berlinfactor you will find some very useful code samples for bluetooth, http, modplayers, w32sockets and socket engines graphics utilities not to mention game utilities. There is also a game demo and a splash screen and much more useful crazy stuff.
All have source code included. They have just added a J2ME section, so check it out.